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by Justin >> Fri, 22 Jul 2005 7:10:42 GMT

Now, for interface between two system , I have to export a file form one and import to other one.
Does anyone have experience about accessing each other between two jade system directly ? Any help would be appreciated!

by John Munro >> Fri, 22 Jul 2005 8:47:22 GMT

You could use SDS (look it up on the Jade website) iF what you need is a hot-standby.

I have successfully connected a Jade Web Service Provider to a Jade Web Service Consumer in different databases - you could use this to keep two databases synchronised.

For databases running on the same computer there's a feature on the roadmap called Native Messaging Services that should allow you to send messages between two Jade databases - you could use that to keep them synchronised. That's not going to be available until 2006 sometime though I think.

You could also just use a straight TCP/IP connection using TcpIpConnection, you'd have to do your own serialization though.


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by Allistar >> Sun, 24 Jul 2005 12:24:11 GMT

You can use web services to communicate between two JADE systems. I have developed interfaces between JADE systems that use the JOMAPI (in a DCOM component). This allows you to open a JADE database from within JADE code running on a second database and then call methods on that connected database.

Regards,
Allistar.

by Scott Sheng >> Thu, 28 Jul 2005 11:04:29 GMT

Hi Allistar,
Thanks for your information.
Could you please provide us any sample program to communicate between two Jade systems?
I'd appreciated if Jade has own program to communicate between two Jade systems.

Many Thanks,
Scott

by Alistar >> Mon, 1 Aug 2005 11:44:54 GMT

Hi Scott,
I don't have a generic one I can supply but you can contact me via email if you would like me to put a sample DCOM component together for you.

Regards,
Allistar (allistar@silvermoon.co.nz)

by Robert >> Sun, 24 Jul 2005 21:20:49 GMT

If you need guarantee message delivery when the other system is unavailable, then your current implementation using file transfer supports this. I think the Native Messaging Services will also provide message queueing.

Any of the 'real time' methods (tcp, web services, etc) will require that you design your own mechanism to maintain interface integrity across outages.

by Scott >> Mon, 25 Jul 2005 0:29:13 GMT

We have used the following mechanisms:
- Custom TCPIP interface
- Web Services

We have also developed a JADE replication engine (which uses TCPIP) to synchronise JADE servers or client and server.

If the interface is a query/response type, using web services would be a sound approach.

by Justin >> Mon, 25 Jul 2005 0:40:11 GMT

Thank you all !